[HWYSTR455]

I ran a block filled to the freeze plugs for 90k miles on the street, abusively, and many many long trips, never saw over 300F degrees. Use quality name-brand oil, change it on regular intervals, and you are good.

If you're concerned about it, you can help by using a larger capacity oil pan. That should be good for a few degrees.

As for lines, routing, and headers, the best way to plumb is tap the block itself, and don't use an adapter. Then use pipe threaded fittings in the block. That's as close as you're going to get with clearance.

When you go to remote filter/cooler setup, there are other concerns, such as potential for leaks, hose replacement intervals, line size impact on flow/psi/etc, drainback/refill time, bypass, and filter types to use. = Headache for little to no gain.

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